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XJ Ask the Question Thread
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by Nperryman
Im switching to either a 30 or 31 from a 235/75/15 with a 8.25" in the rear and a 29 spline I believe, its a 98 sport 4 door.
CF Veteran
Joined: Dec 2010
Posts: 6,880
Likes: 0
From: Frederick, Maryland
Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
I have a plethora of Jeep information and links stockpiled on my computer and in my brain.
Personally i run Firestone Destination M/T tires and couldn't be happier with the treadware and performance. Bonus - they look sexy as hell too. The A/T flavor is very good as well.
From a while back - 235/75s fully stuffed, no trimming, no rubbing

Personally i run Firestone Destination M/T tires and couldn't be happier with the treadware and performance. Bonus - they look sexy as hell too. The A/T flavor is very good as well.
From a while back - 235/75s fully stuffed, no trimming, no rubbing

CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by sycoglitch
A couple of ppl here say they get around 10-12 mpg with that setup. I know it gets bad around 33's but with a 4.5" lift that's gonna create drag on the rig
Senior Member
Joined: Jan 2010
Posts: 602
Likes: 3
From: LARRYVILLE
Year: 1998
Model: Cherokee
Engine: 4.0
Originally Posted by Nperryman
Would the 4.5" create a lot more drag than the 3"? It just seems like 1.5" wouldn't change much. Ive been talking to a guy with 4.5" and 31's and he gets around 19-21. He has an injector upgrade and filter. Would the injector and filter upgrade really boost it so much?
I run 33s and get like 16 hwy.
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by D3UC3S
I just went from 3 to 4.5" and its not really noticeable. Off road its way nicer!
I run 33s and get like 16 hwy.
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by Nperryman
Would the 4.5" create a lot more drag than the 3"? It just seems like 1.5" wouldn't change much. Ive been talking to a guy with 4.5" and 31's and he gets around 19-21. He has an injector upgrade and filter. Would the injector and filter upgrade really boost it so much?
Edit: oh yea and 1.5" won't make more of a drag diff but yea offroad it'll be a great difference
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by sycoglitch
19-21 is better than I'm getting stock but yea the injector upgrade would do it and do you mean a cold air intake upgrade, a true CAI would help too. Plus a good tune up too
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by Nperryman
No it was a k&n drop in filter. Wht does a cai run for price wise and what does it do?
CF Veteran
Joined: Dec 2010
Posts: 6,880
Likes: 0
From: Frederick, Maryland
Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
Can anyone show me a picture of a rear main seal leak? I know, I know I will soap and spray off everything tomorrow,Its just dark now! I was just curious what it looked like.
Seasoned Member
Joined: Sep 2010
Posts: 331
Likes: 0
From: Parma Ohio
Year: 1998
Model: Cherokee
Engine: 4.0
Is this a stock Pittman Arm? (I'm aware my tre is doomed,in the process of changing it again lol) I was just wondering bc I know I have the zj steering swap done so I was kinda curious if this is the drop arm out of a zj also.
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
I replaced the rear main oil seal and this was attached to the two rear oil pan 5/16 bolts. It faces the transmission inspection plate. Where can I find a new one, what is it called, or do I even need one. 2001 XJ auto 4.0 stock
Attachment 51386
Attachment 51386
Best bet would be the junkyard for something like that
Seasoned Member
Joined: Sep 2010
Posts: 331
Likes: 0
From: Parma Ohio
Year: 1998
Model: Cherokee
Engine: 4.0
Originally Posted by dukie564
looks stock to me
Follow up question: would a Durango steering box with a zj Pittman arm on it be a solid junkyard upgrade? or is the combo not possible/stick to one or the other Just trying to get a parts list going for my next junkyard trip lol. Thanks
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
if you drop the pitman arm, you'll need to drop the trackbar mount also to prevent bump steer.
My durango box swap thread should clear up the rest:
https://www.cherokeeforum.com/f51/du...houghts-84331/
My durango box swap thread should clear up the rest:
https://www.cherokeeforum.com/f51/du...houghts-84331/





